Google's Project Tango, that awesome tech that allows a gadget to map out three-dimensional spaces, is really cool. But it's taking its damn sweet time getting here: Tango was first announced over two years ago and offered as a developer kit tablet last summer, and the first Tango-capable smartphone was supposed to arrive from Lenovo this month. That seems less than likely now - the store page for the Phab 2 Pro has been adjusted from "coming this summer" to "coming this fall."

The page is still up with a firm unlocked price tag of $499, which is at least encouraging. If Lenovo had planned to drop the release entirely they probably would have scrapped the store page, too. But "fall" is a bit nebulous, and could mean anytime between now and mid-December (assuming there are no more major delays). Developers who want to try Tango for themselves are currently out of luck, as Google is no longer selling the tablet via the online store.

Aside from the Tango functionality, the Phab 2 Pro features a giant 6.4" QHD screen, a 16MP rear camera and 8MP front-facing shooter, 64 gigs of storage and 4GB of RAM, and a huge 4050mAh battery. The only downer is a mid-range Snapdragon 652 processor, but Lenovo says it's "optimized for Tango." We'll let you know when - and if - the phone finally becomes available to consumers.